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Since upgrading my MacBook Pro to iOS Monterey, my Seagate Portable hard drive won't work. It shows up when I go to disk utilities but it won't show up on my desktop or back up using Time Machine. Any suggestions?
MacBook Pro (2020 and later)
Make sure it is formatted in a mac OS compatible file system
File system formats available in Disk Utility on Mac - Apple Support
Erase and reformat a storage device in Disk Utility on Mac - Apple Support
It is possible it is formated as NTFS and you previusly used some third party software to be able to write to it.
If this is not the case. It could still be worth it to reformat it. But in any case make sure you move any content you want to keep out of the disk using another computer first.
Make sure it is formatted in a mac OS compatible file system
File system formats available in Disk Utility on Mac - Apple Support
Erase and reformat a storage device in Disk Utility on Mac - Apple Support
It is possible it is formated as NTFS and you previusly used some third party software to be able to write to it.
If this is not the case. It could still be worth it to reformat it. But in any case make sure you move any content you want to keep out of the disk using another computer first.
You are not the only one having this problem; that happened to me after upgrading to Monterey, so I went back to Catalina and am still having the same problem. Never ever had an issue using Mojave. Others have written about as well. I watched a good Youtube last night, followed the instructions, and the Seagate seems to be working better now (fingers crossed). Had to go into Recovery to be able to erase, format in APFS. Now there are containers that are added in Catalina and Monterey. https://www.youtube.com/watch?v=caYfZWyN4CQ
Use Disk Utility to format:
Intro to Disk Utility on Mac - Apple Support
File system formats available in Disk Utility on Mac - Apple Support
What format you use depends upon its use.
macOS Monterey.
Thanks, but the Seagate Portable HD was working fine UNTIL I upgraded to Monterey. Any suggestions?
Yes, what I said was based on that. It is possible it is formatted in a way that does not have native support in mac OS.
And that the software used to make it compatible does not work on Monterey
How do I reformat my Seagate hard drive that is not working with Monterey
Seagate Portable HD won't work with Monterey?
